查询词典 coefficient of variation

The effect of vitriol excess coefficient, reaction temperature and reaction time on the leaching ratio has been studied.

其次是硫酸浸取，研究了硫酸过量系数、酸浸温度和酸浸时间对铁的浸出率的影响。

Control of excess carbon coefficient ~% is appropriate.

炭的过量系数控制在～％为宜。

As the excess coefficient of reducing agent increasing, the percent reduction of strontia increases, but the tendency of increasing is more and more weak.

但是，在实际生产中还应该考虑原材料的价格、设备的使用率等因素对氧化锶的还原率和经济效益的多方面影响，才能具体确定最佳工艺条件。

With the help of this model, the influence of engines capability by some parameters such as compression ratio、coefficient of excess air and ignition timing can be estimated, and the influence factor was analyzed in this paper.

本文利用该模型预测了压缩比、过量空气系数、点火提前角等参数对发动机性能的影响并分析了这些参数对发动机性能产生影响的原因。

Through testing the effects of temperature, time and so on, better parameters of roasting reduction method can be shown as follows: excess coefficient of carbon 0.8-0.9, reduction temperature 1 150℃, reduction time 50 min.

通过考察温度、时间等工艺因数的影响，得到了焙烧还原法合理工艺条件：碳过量系数为0.8-0.9、还原温度1150℃、还原时间50min。

Through theoretical calculations and practical measurements an analysis and demonstrative reasoning were conducted of the excess air coefficient of a heat supply boiler, which has led to the increase in heat supply energy consumption.

通过理论计算和实际测试，对供热锅炉的空气过量系数导致供热能耗增加进行了分析、论证，得出了供热锅炉在实际运行中的空气过量系数增加是导致供热能耗上升的结论，并对供热锅炉的空气过量系数增大原因进行分析。

Through experiments of excess air coefficient on the PC combustion in stove, it is concluded that it is no use to add too much air at the beginning of free-oil ignition of PC.

本文通过研究过量空气系数对炉内火焰的影响规律，指出在煤粉无油点火初期不宜补充大量二次风。

Tacking burning fuel oil as an example, the impacts of excess air coefficient a on the thermal efficiency and the corrosion of furnace tubes in tubular furnaces were discussed in this paper.

以燃烧燃料油为例，讨论了过剩空气系数α对管式加热炉热效率和炉管腐蚀的影响，并从设计、操作等方面针对这些影响提出了一些建议。

Based on the quasi-dimension combustion model, the emission model is set up in this dissertation. The NO emissions in different conditions of LPG engine can be simulated and calculated by the model. The calculated results show that the NO emissions are larger influenced by ignition timing and less influenced by compression ratio, finally, choosing a right coefficient of excess air will have great effect to reduce NO emissions.

本文在建立的准维燃烧模型基础上建立了排放生成模型，利用该模型对液化石油气发动机在变参数情况下NO的排放生成情况进行了模拟计算，计算结果表明点火提前角对NO的生成影响较大，压缩比对NO的生成影响较小，而选择合适的过量空气系数更是对降低NO的生成起着关键作用。

At the same time, when diesel runs in different altitude, because air density becomes different, the coefficient of excess of air has also been changed, so the work characteristic of diesel alters.

同时，柴油机运行在不同海拔下，由于进气密度不同，导致过量空气系数改变，从而其工作性能发生改变。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。